Answer:
B and C
(I'm not sure if b and e are supposed to be the same though) if they are then, b, c, and e
Answer:
The correct options are Option A and Option D
Step-by-step explanation:
Mark wants to find the area of a circle with a diameter of 6 cm.
We need to find the expressions can he use to find the area of the circle in square centimetres?
The formula used to find area of circle is: [tex]Area=\pi \:r^2[/tex]
We are given Diameter = 6 cm
Radius = Diameter/2 = 6/2 = 3 cm
We get radius = 3cm
Now, putting values and finding area
[tex]Area=\pi \:r^2\\Area=\pi \:(3)^2\\Area=3^2\:\pi[/tex]
We can also write it as:
[tex]Area=3*3*\:\pi[/tex]
So, correct options are Option A and Option D
WILL GIVE BRAINLIEST!!!!!
A bacteria grows exponentially so that it doubles every 12 days. There are 500 bacteria initially. Write a function that models the number of bacteria after t days.
Note is is NOT doubling every day! Careful.
Find the number of bacteria after 60 days.
Answer:
16000 bacteria after 60 days
Step-by-step explanation:
60 divided by 12 = 5
500 x 2= 1000
1000 x 2 = 2000
2000 x 2 = 4000
4000 x 2 = 8000
8000 x 2 = 16000
The function is, f(x) = 2x/12*t
And, the number is 16000 bacteria after 60 days.
What is function?Function, in mathematics, an expression, rule, or law that defines a relationship between one variable (the independent variable) and another variable.
here, given that,
A bacteria grows exponentially so that it doubles every 12 days
let, initially the number of bacteria = x
after 12 days = 2x
i.e. after t days = 2x/12*t
So, the function is, f(x) = 2x/12*t
Now, we have,
60 divided by 12 = 5
So, the number of bacteria will be,
500 x 2= 1000
1000 x 2 = 2000
2000 x 2 = 4000
4000 x 2 = 8000
8000 x 2 = 16000
Hence, the number of bacteria after 60 days is 16000.
To learn more on function click:
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What are some negative numbers and some positive numbers
Answer:
negative:-7, -8, -9
positive: 8,4,6
Step-by-step explanation:
Answer:
5 and -5
Step-by-step explanation:
you could use a number line and make it go two ways from 0, any number to the left is negative, any numbers right are positive.
On the evening news, the weatherman said their was a 60% chance of rain. Which
value is equivalent to 60%?
Answer:
0.6 is equivalent
Answer:
60/100=6/10=4/5
0.6
Step-by-step explanation:
these are all equivalent
Sam manages a clothing boutique and has an annual salary of $23600. Doug works in a shoe store and is paid 9.40/h each week. Who has the higher gross income each month?
Answer:
Sam earns more money than Doug in an year
Step-by-step explanation:
The complete question is -
Sam manages a clothing boutique and has an annual salary of $23600. Doug works in a shoe store and is paid 9.40/h for 40 hours each week. Who has the higher gross income each month?
Solution -
Sum of money (in dollars) earned by Doug in one week is equal to
[tex]= 9.40 *40\\= 376[/tex]
Sum of money (in dollars) earned by Doug in one year is equal to
[tex]= 376 * 52 \\= 19552[/tex]
Hence, Sam earns more money than Doug in an year
asap! super urgent! help me outtt :'(
Answer:
3/47
Step-by-step explanation:
of the 47 total cars, 3 of them are a beige SUV
help help help help help help help help
Answer:
[tex]x^{2} +5x[/tex]
Step-by-step explanation:
A = length x width
l = x + 5
w = x
A = x(x + 5)
[tex]A=x^{2} +5x[/tex]
how do I simply 4/6
Answer:
Your Answer Is 2/3
Step-by-step explanation:
First you have to find what number are both divisible by, in this case 2.
Next you divide: 4÷2=2 and 6÷2=3
Since 4 was your numerator you put 2 on the top and Since 6 was the denominator you put 3 on the bottom.
In 3 days, the temperature dropped 27 degrees.how many degrees per day did the temperature drop
Answer: The Temperature dropped 0.111 per day
Step-by-step explanation:
[tex]\frac{3 days}{27 degrees }[/tex]
3 divided by 27 = 0.111
Answer:
Answer: The Temperature dropped 0.111 per day
Step-by-step explanation:
3 divided by 27 = 0.111
I'll give brainliest if correct/Maria, Jose, and Trey sent a total of 124 text messages over their cell phones during the weekend. Jose sent 3 times as many messages as Trey. Trey sent 9 fewer messages than Maria. How many messages did they each send?
Answer:
Maria sent 32 messages
Jose sent 69 messages
and Tray sent 23 messages
Step-by-step explanation:
m = Maria
j = Jose
t = Trey
m+j+t = 124
j = 3t
t+9 = m $\Rightarrow$ t = m - 9
By substituting the value of t (third equation) into the second equation, we get:
j = 3(m - 9) = 3m - 27.
Finally, by sticking in the values of j, and t we just found out into the first equation, we get:
m + (3m - 27) + (m - 9) = 124
4m - 27 + m - 9 = 124
5m - 36 = 124
5m = 160
m = 32.
So, j = 69,
and t = 23.
Solve each equation.
2x=52x=5
answer asap plz
Answer:
The correct answer for this problem is 55
HELP ASAP , WILL GIVE MOST BRAINIEST
Use the drawing tools to graph the solution to this system of inequalities on the coordinate plane.
y> 2x + 4
x+y s6
The inequalities y > 2x + 4 and x + y ≤ 6 can be plotted on the coordinate plane as shown in the picture.
What is inequality?It is defined as the expression in mathematics in which both sides are not equal they have mathematical signs either less than or greater than known as inequality.
We have two inequalities:
y > 2x + 4
x + y ≤ 6
We can plot the above inequality on the coordinate plane.
The inequalities representing the region between the two lines the lines are:
y = 2x + 4
x + y = 6
y > 2x + 4 (dashed line on the graph)
x + y ≤ 6 (solid line on the graph)
Thus, the inequalities y > 2x + 4 and x + y ≤ 6 can be plotted on the coordinate plane as shown in the picture.
Learn more about the inequality here:
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HELP I NEED HELP ASAP
Answer:
i think is B hope it helped sos if its wrong
Step-by-step explanation:
Ash is 4 years younger than Gary, and Oak is 5 times Gary's age. The sum of their three ages is 94. Find Gary's age. Show working out. Thanks!!
Answer:
Step-by-step explanation:
If Gary's age is 14 then
Ash is 4 years younger = 14 - 4 = 10
And Oak is 5 times Gary's age = 14 x 5 = 70
So total ages = 70 + 14 + 10 = 94
if you complete it and it's correct I give you (brainlist)help
Answer:
1. 9
2. 122cm squared
3. 189m
4. 30
5. b
Step-by-step explanation:
1. 27,36,45,54,63,72,81,90,99
2. 12x6=72 10x5=50 50+72=122
3. 21x9=189
4. 5x12=60 60/2=30
5 b because 150 divided by 4 doesn't give you a whole number.
Pls help I’m being timed
I NEED HELP PLEASESEESEESSES
Answer:
67
Step-by-step explanation:
because u add
What is -7 to the 4 power in expanded form?
Answer:
-7 x -7 x -7 x -7
Step-by-step explanation:
To the fourth power mean times itself four times
what is the inverse of y =8^x
Answer:
[tex]f^-1(x)=\frac{ln(x)}{ln(8)}[/tex]
express 0.42 as a fraction.
A. 42.1
B. 42/1
C. 100/42
D. 42/100
Answer:
42/100
Step-by-step explanation:
(-3,-2). (9. -15)
Slope
answer:
-13/12
Step-by-step explanation:
use the formula to find slope using points
it is: y2-y1/x2-x1
plug in point values into formula
-3 = x1. 9 = x2
-2= y1. -15 = y2
-15-(-2)/ 9-(-3)
-13/12
Answer:
m= -13/12
Explanation:
formula to solve: x1-y1
x2-y2
25 seats in his classroom and 25 students. He wants to know how many seatting arrangements there are. How would you solve
this
pls help 12 points asap
Answer:
circle: a sphere, cone, or a cylinder as 3d
Joe claims that 1/4 is of a figure is less than 1/8 of the same figure. Which statement is true?
Answer:
I disagree with joe.
Step-by-step explanation:
1/8 of a figure is smaller than 1/4. 2/8 of a figure is the same thing as 1/4 though.
Pls helpppppppp
Sbhdcehebjshshwa on sd
Answer:
A
Step-by-step explanation:
Answer:
It's A
Step-by-step explanation:
It's in the middle of 0 and 1 (-1/2) on the x axis and for it to be in the middle of the two points the mid point stays on the x axis thus the y value (the value that goes up and down) is 0.
Find the output, y, when the input, x, is 7 Y=
Answer:
y = 4
Step-by-step explanation:
Locate x = 7 on the x- axis, go vertically up to meet the graph at (7, 4 )
Then when x = 7, y = 4
Answer:
According to the above graphical figure it is found that,
When the input value of x is 7, output value of y is 4.
Location on the graph → (7,4).
y=4 is the right answer.URGENT WILL GIVE 10 PTS!!!!!!!!!!!!!
How do you find surface area and what is the formula for it?
Answer:
Surface Area is found by adding the areas of all the faces of the shape.
Step-by-step explanation:
Surface Area =2lengthwidth+2lengthheight+2heightwidth
Four students received the following grades on their math quizzes. Which student could use the mode to show that she is doing better than the other three students?
Ashlee 70, 94, 90, 70, 94,
Belen 79, 79, 100, 95, 99,
Molly 66, 73, 98, 88, 98,
Sofia 88, 94, 96, 99, 80
Please answer right away.
Answer:
I guess Sofia is doing better than the other three students
Answer:Molly
Step-by-step explanation:
Molly can use her mode to show that she is doing better than the other three students.
Ashlee’s mode is 94, Belen’s mode is 79, Molly’s is 98, and Sofia doesn’t have a mode. The highest is Molly, so she should use her mode to show she is doing better.
i need help
56 = -10 + 2x
Answer: x= 33
i subtracted -10 away from 56 and i got 66, then i divide 66 by 2x and got 33x.. which is your answer ;)
Kaityln saves $35 in 50 days. Her sister saves $15 in 20 days. Determine who is
saving at a higher rate.
The expression 3(x-9) is equivalent to
03(x)+9.
O 3(x)+3(9).
o 3(x) – 9.
3(x) – 3(9).
Answer:
3(x)-3(9)
Step-by-step explanation:
The brackets means you times everything within the brackets with everything outside it. So it would be 3 times x take away 3 times 9